I just finished working on one just jesterday :)
you should consider using:
http://johnpolacek.github.com/scrolldeck.js/ or
http://www.jarallax.com/demo/ (works on android) #its a completely new project so its still being developed
for easily customizable scrollpoints you could use this: http://cssdeck.com/labs/swayiqbq/2 (its quite useful while overriding default scrollpoints(which is from slide to slide in scrolldeck.js))
Not sure if youre working on code only, or youre doin both graphics and code, if its the first scenario, you should tutor your designer about how this thing works in order to really use parallax effect.
Also, making everything look as appealing in 1920x1080 as in 1024x768 might be quire challenging in some cases.
